4. Suppose the manufacturer of Advil, a common headache remedy, recently developed a new formulation of the drug that claimed to be more effective. To evaluate the new drug, a sample of 200 current users is asked to try it. After a one month trial, 180 indicated that the new drug was more effective in relieving headaches. At the same time, a sample of 300 current Advil users was given the current drug but told it was the new formulation. Of this group, 261 said it was an improvement. At the 5% significance level, can we conclude that the new drug is more effective? This only requires a one page answer, and there is no word limit. Thank you!
Paper#13449 | Written in 18-Jul-2015Price : $25